Was sick after hospital called (6)
I believe the answer is:
hailed
'called' is the definition.
(hailing is a kind of calling)
'was sick after hospital' is the wordplay.
'was sick' becomes 'ailed' (I've seen this before).
'after' is a charade indicator (letters next to each other).
'hospital' becomes 'h'.
'ailed' put after 'h' is 'HAILED'.
(Other definitions for hailed that I've seen before include "Greeted like old Romans did Caesar" , "Called to or summoned - say taxi" , "Greeted (with ice pellets?)" , "acknowledged" , "Called, a cab say" .)